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Changed weekly durations to 95th percentile instead of averages; improved wordngs.
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‎src/pages/docs/octopus-cloud/uptime-slo.md‎

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layout: src/layouts/Default.astro
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pubDate: 2023-01-01
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modDate: 2025-02-03
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modDate: 2025-02-04
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title: Octopus Cloud Uptime SLO
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navOrder: 50
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description: The uptime SLO for Octopus Cloud instances
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We calculate uptime as 100% of the month, less all unplanned downtime.
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Planned maintenance is a key benefit of Octopus Cloud and is scheduled in advance, so we exclude it from our uptime SLO calculation. Other than in exceptional circumstances, planned maintenance occurs during the customer’s [maintenance window](/docs/octopus-cloud/maintenance-window). In the 4 months ending October 2024, planned maintenance averaged fewer than 8 minutes of downtime per week.
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Planned maintenance is a key benefit of Octopus Cloud and is scheduled in advance, so we exclude it from our uptime SLO calculation. Other than in exceptional circumstances, planned maintenance occurs during the customer’s [maintenance window](/docs/octopus-cloud/maintenance-window). In the 7 months ending January 2025, planned maintenance averaged fewer than 6 minutes of downtime per week.
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## Uptime Track Record
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This table lists Octopus Cloud's monthly uptime statistics for the last 12 months.
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We list our achieved uptime percentage and the average amount of unplanned downtime for each month. We also show these data points including planned maintenance.
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We list our achieved uptime percentage and weekly unplanned downtime duration. We also show these data points including planned maintenance. Data points measured at 95th percentile of all paid subscriptions.
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| Month | Uptime % | Average weekly unplanned downtime | Uptime % incl. planned maintenance | Average weekly downtime incl. planned maintenance |
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| Month | Uptime % | Weekly unplanned downtime | Uptime % incl. planned maintenance | Weekly downtime incl. planned maintenance |
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| :----- | ------: | ------: |------: | ------: |
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| January 2025 | 99.9924% | 30s | 99.9397% | 209s |
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| December 2024 | 100% | 2s | 99.9666% | 114s |
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| November 2024 | 100% | 2s | 99.8895% | 446s |
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| October 2024 | 99.9973% | 5s | 99.917% | 309s |
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| September 2024 | 99.9977% | 4s | 99.9165% | 313s |
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| August 2024 | 99.9955% | 8s | 99.8978% | 447s |
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| July 2024 | 99.9978% | 6s | 99.8602% | 616s |
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| June 2024 | 99.9931% | 9s | 99.9196% | * 279s |
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| May 2024 | 99.9976% | 11s |- | - |
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| April 2024 | 99.9687% | 17s |- | - |
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| March 2024 | 99.9914% | 10s |- | - |
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| February 2024 | 100% | 2s |- | - |
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| January 2025 | 99.9924% | 49s | 99.9397% | 371s |
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| December 2024 | 100% | 0s | 99.9666% | 203s |
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| November 2024 | 100% | 0s | 99.8895% | 672s |
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| October 2024 | 99.9973% | 21s | 99.917% | 504s |
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| September 2024 | 99.9977% | 14s | 99.9165% | 511s |
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| August 2024 | 99.9955% | 28s | 99.8978% | 623s |
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| July 2024 | 99.9978% | 14s | 99.8602% | 847s |
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| June 2024 | 99.9931% | 49s | 99.9196% | * 490s |
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| May 2024 | 99.9976% | 21s |- | - |
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| April 2024 | 99.9687% | 189s |- | - |
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| March 2024 | 99.9914% | 56s |- | - |
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| February 2024 | 100% | 0s |- | - |
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\* We began capturing planned downtime metrics on June 10, 2024.
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### How we calculate uptime
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We calculate uptime as 100% minus the percentage of unplanned downtime seconds out of the total seconds in a calendar month. We measure uptime performance at the 95th percentile of all paid subscriptions (95% of customers experienced at minimum the listed uptime %).
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We calculate uptime as 100% minus the percentage of unplanned downtime seconds out of the total seconds in a calendar month. We measure all data points at the 95th percentile of all paid subscriptions (95% of customers experienced the listed measurement *or better*).
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We exclude downtime that arises from planned or customer-requested maintenance from our uptime SLO calculation, but we measure and report it for transparency.
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We exclude downtime that arises from planned or customer-requested maintenance from our uptime SLO calculation, but we measure and report it for transparency.
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Some Octopus Cloud customers use [dynamic workers](/docs/infrastructure/workers/dynamic-worker-pools). As the name implies, these workers are dynamically assigned to a cloud instance and are spun up and down as required by the Deployment or Runbook executed. We exclude Dynamic Workers from our calculation of uptime.
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**“Downtime”** means a period where the customer instance is unavailable, according to Octopus Deploy's internal and external monitoring systems.
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**"Average weekly unplanned downtime"** is measured in seconds per week, as an arithmetic mean across all paid customers. It excludes planned maintenance and customer-requested maintenance.
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**"Weekly unplanned downtime"** is shown as seconds per week. We use the month's total unplanned downtime duration measured at the 95th percentile of all paid subscriptions to calculate a weekly average duration. It excludes planned and customer-requested maintenance.
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**"Average weekly downtime incl. planned maintenance"** is measured in seconds per week, as an arithmetic mean across all paid customers. It includes planned maintenance and customer-requested maintenance.
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**"Weekly downtime incl. planned maintenance"** is shown as seconds per week. We use the month's total downtime duration measured at the 95th percentile of all paid subscriptions to calculate a weekly average duration. It includes unplanned downtime, as well as downtime arising from planned and customer-requested maintenance.
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